Toriumi appears to be a laid-back teacher who complains about her work at the start of a class and is first seen complaining about her having to teach her class about an author she doesn't like and derailing the subject. When privately speaking to the protagonist during her Social Link as "Maya/Y-Ko," however, she becomes a pathological complainer who outright neglects grammar and punctuation, makes many typos, uses expressions such as "lmaonade," "roflcopter,".